一个典型的UDP广播包查询命令，含有接收方和主站端的代码，可以参考，应用在物联系统中，模块查询-A typical query UDP broadcast packets containing the receiver and the master station side code, you can refer to the application in the IOT system, the module queries

这是一个ESP8266模块的一个AT指令发送接收软件，ESP8266是2015年比较火的一个物联模块-This is a ESP8266 an AT command module of sending and receiving software, ESP8266 is more fire in 2015 a IOT module